Slashback tonight with a few words on forcing Open software, NASA mind-reading tricks, a reminder of one nice way not to pay for an MP3 decoder, and more. Read on for the details. Update: 08/28 00:36 GMT by T : Oops -- No DoubleClick news tonight, as the original headline implied. Regrets.

About what? Perl is probably a good topic choice. No one knows more about Perl than Larry Wall, right? We'll send 10 of the highest-moderated questions to Larry by email, and post his answers when we get them back. Note: Due to Slashdot's line length restrictions, lines of code over 50 characters long may not display correctly. Please be aware of this if you include code samples in your question.

Froze asks: "This is the beginning of my seventh year in school (yes, I am a grad student) and I am looking for the most cost effective solution in a scientifically oriented PDA. A strong compatibility with Linux is a must. My background is in Physics and Mathematics, so it would be nice to have some way of handling mathematical input (like the Zaurus). An on-board language would be a plus as well, something along the lines of bash, Perl, or Java would do."

prostoalex writes "Come gather round Mongers, whatever you code, And admit that your forehead's about to explode, 'Cos Perl patterns induce complete brain overload, If there's source code you should be maintainin', Then you better start learnin' Perl 6 patterns soon, For the regexes, they are a-changin'. This remix of Bob Dylan serves as an epigraph to Exegesis 5."

prostoalex writes: "In the world of information technology, information, as the name suggests, is as important as technology itself. Erik T. Ray's and Jason McIntosh's Perl and XML is an attempt to take a look at perhaps the most popular languages for data processing. XML is an open-standard specification for documents, while Perl's natural powers lie in the area of data processing, and, as the name suggests, practical extracting and reporting." Prostalex has reviewed Perl & XML below; read on for his take on the book.

prostoalex writes "Scientists at Gemini Observatory are using Internet2 to link telescopes worldwide and receive images that they say are sharper than those coming from Hubble."

Grok writes "You may have heard about a company named ActiveState before. Maybe you're a Perl programmer and have used ActivePerl, ActivePython or some of their other various programming-related tools. Well, today MozillaNews has an interview with David Ascher, a senior programmer at ActiveState, and the tech lead for Komodo, the cross-platform, multi-language IDE based on Mozilla."

When direct database access to the information you need isn't available, but web pages with the right data are, you might pursue "screen-scraping" -- fetching a web page and scanning its text for the appropriate pieces of text in order to do further processing. LWP (Library for WWW access in Perl) is a collection of module to help you do this. mir writes: " Perl & LWP is a solid, no-nonsense book that will teach you how to do screen-scraping using Perl. It describes how to automatically retrieve and use information from the web. An introduction to LWP and related modules from simple to advanced uses and various ways to extract information from the returned HTML."

BorrisYeltsin writes "The Parrot project has just released a functional compiler for Parrot. Almost all of the previous Apocalypses have been implemented as well as some other toys, including but not limited to: Ruby and Python parsers, BASIC and Scheme interpreters and a Forth compiler, the team are now working on Perl 6 regexes. Check it out at cvs.perl.org."

mbadolato writes "I'm surprised this hasn't been reported yet. Over at use.perl they're reporting that when the current issue of SysAdmin comes out, this will be the last installment of The Perl Journal. It's a shame. TPJ originally was stopped as a stand-alone, but was then included into Sysadmin. Now that's going too. We all owe a big thanks to all the contributers, and to Jon Orwant, for providing us a great resource in TPJ over the years."

passthecrackpipe writes "Leonard Lin has put up the presentation Lawrence Lessig gave at OSCON (mirror). It is great. It requires Flash." Nice Flash work, very impressive, and of course Lessig is a superior speaker. Worth your time and the 8Mb download.

Lumpish Scholar writes "ActiveState founder Dick Hardt has quit. Or, as the press release puts it, "ActiveState Expands Board & Founder Steps Aside." No reason for the resignation was given, unless you count, "The company is looking to become a $100 million company, and they're looking for someone ... that [sic.] has that experience." ActiveState (profitably!) distributes its own proprietary products, and also both free and commercially supported versions of Perl, PHP, Python, Tcl, and XSLT, having given back significantly to the free / Open Source communities associated with those languages."

davorg writes "In the dim and distant past when I first started doing web development, there was a book that everybody had a copy of. It was called 'How to Set Up and Maintain a Web Site' and it was by Lincoln Stein. The reason why everyone owned (and, more importantly, read) it was that it contained a complete high-level snapshot of everything you needed to know in order to run a web site at that time. Unfortunately, after a second edition in 1997 the book hasn't been updated. I suppose that the subject area has grown so much that no-one thought that a complete overview would be too high-level to be useful. They were probably right." davorg's review continues below.

BorrisYeltsin writes "Big news in the Perl community this week is that Parrot 0.0.7 now out. New in this release is "Perl 6 grammar (with small, partial compiler), functional subroutine, coroutine and continuation PMCs, global variables, an intermediate code compiler (imcc), a pure-Perl assembler and working garbage collection." Also there are more Parrot docs! Check out the news here."

Jamie Zawinski writes "Mark your calendars: on Thursday, August 22nd, we're throwing a benefit party for the EFF at DNA Lounge in San Francisco! In addition to great music from DDR, Kid606, and many others, you can also witness the carnage of the first ever Wil Wheaton versus Barney Celebrity Boxing Match! Can Wil, with his backing from the EFF, protect free speech and parody on the Internet and defeat Barney and his team of corporate lawyers? You can also join us earlier in the evening and meet Wil at a special VIP party: see the DNA Lounge announcement or the EFF press release for more details." Even if you can't attend, isn't now a good time to renew your membership?

Aetius writes "The Center for Internet Security has released a set of security standards and tools for several operating systems. Here's the ZDNet story. I checked out the Linux standard and it is a pretty good coverage of the basics; about the only thing missing was a simple firewall treatment. I installed it on my wide-open desktop system (RH 7.3) and scored a 6.61 out of 10, which doesn't seem too bad. The scanner code isn't open source, but it's perl so you can at least look at it. You have to register to download it. If nothing else, the PDF of the standards is a good read. Enjoy."

x180 writes "Those goofy hackers over at the O'Reilly Open Source Convention in San Diego this week have, in a spate of fun, put together a series of Switch ad spoofs for the geeky ones. Writes Rael Dornfest in his blog, 'You've no doubt seen Apple's fabulous Switch campaign commercials. But what of the others? The geeky ones. The scripters. The sysadmins in their server cages. The command-line jockeys. Those through whom the source flows openly.' See the stories of hackers chucking Emacs in favor of Vi, leaving Perl to explore Python, and leaving the familiar home of Unix to play with XP." These, of course, aren't the only switch parodies. Their numbers are Legion.

You'll remember last week, I asked for recommendations of the Best Websites for developers. This was a -great- thread and in the story, I mentioned that I was planning on doing the same regarding books this week. So here it is. What do you, the slashdot reader consider seminal works? What would you consider great introductions to technical topics? If you are interested, check it out...

Recently, I've been entertaining the idea of getting into a little Java programming for a side project I'm working on, and I realized that I really don't know where to start. This led to a larger question of what the best books and websites are for pepole new to a language. What about for the experts in a language? So this week, I was wondering what slashdotters thought are the best websites to go to for information on the major languages (like C, C++, PHP, Perl, etc) and the important topics in programming (x, gtk, win32, etc). I obviously have some opinions on some of the better places to visit, but I wanted to see what slashdotters thought. (hence the paucity of links in this story) Where do people find the authorities? My intention is to ask about web sites this weekend, and books next weekend.

MattE writes: "Alton Brown, for those who aren't familiar, has a cooking show on the Food Network called Good Eats. His new book isn't so much a cookbook, in the current sense of a book that contains a heck of a lot of recipes. (It does, in fact, contain recipes, but it really isn't what the book is about.) See the Perl cookbook, for a translation of this idea to programming. It is a book about cooking that covers science and technique first; Recipes are only example code. He says he is a 'culinary cartographer.'" This sounds like a fun book -- for the rest of Matt's review, read on below.